How to redirect on form validation succes?

[eluser]123wesweat[/eluser]
ok, i have this demo.js

Code:

$(document).ready(function() {
    $("#form").submit(function() {
        var fname= $("#fname").val();
        var lname= $("#lname").val();
        $.post("/welcome/process", { fname:fname, lname:lname },
        function(data){
            $("#fname_error").html(data.fname);
            $("#lname_error").html(data.lname);
        },'json');
    });
});

and include

Code:

[removed][removed]
[removed][removed]

I got a bit lazy and i used http://formtorch.geekhut.org/

ps: i notice i am using the validation library but it's recommended to use form_validation
http://www.codeignitor.com/user_guide/li...ation.html